Fabric cement



Patented Sept. 27, 1927. v

UNITED STATES ATENT OFFICE.

NICHOLAS C. AMEIL OI KANSAS CITY, MISSOURI, ASSIGNOR TO HOWARD -OF KANSAS CITY, MISSOURI.

n. RANDOLPH,

FABRIC can.

R Drawing.

. This invention relates to a composition of matter to be used as a pliable and waterproof liquid cement for fabric or the like.

I have found in practice. that it is particularly efficient in repairing and manufacturing'articles of canvas, closely woven cloth .of linen or silk; and, in fact, wherever it is desired to join such material by means of an adhesive. It is also particularly advanlotageous in repairing tents and awnings;

My fabric cement consists essentially of nitrocellulose or nitro cotton or celluloid, benzol and methyl acetone. though not necessarily, a small per cent of butyl acetate or ethyl acetate which prevents blushing of the composition especially in damp, humid weather.

What I consider'to be the best proportion of these different ingredients, but'to which my invention is not to be limited, is the fol' lowing:

Pounds. Nitrocellulose or intro cotton or C6ll11- l0id Benzol (90% water white) 11 Methyl acetonem 9 If butyl acetate or ethyl acetate is used, I emplo from 3. to 8 'per cent of the above, accor ing to the weather condition during solution. will blush, either of the two acetates canbe used to check blushing by adding from 3 to- 8 per cent. A v

1 have found that as a base and adhesive power, either nitrocellulose ornitro cotton or celluloid is most desirable. The benzol, used inthe ratio mentioned above, adds-its oily properties to prevent the'cement from eating t able in rendering the cement pliable after ithas dried;

Application mea J'uly 1o,

I also add the mixing. In damp humid weather, the

e container, and also proves valu 1924. Serial No. 725,220.

The methyl acetone functions .as the solvent and, when'mixed with the benzol in the proportions given, reduces. the drying time of thecement to a minimum.

The steps or process of mixihg the fabric cement essentially includes the followmg:

oughly mixed together, after which the nitrocellulose is added. The solution should be stirred constantly from the very beginning of the mix. Y

A constant and uninterrupted mixing offrom three to eight hours is required to insure a thoroughly mixed solution, after which it is allowed to age for approximately 48 hours. This aging permits all foreign matter to settle before placing the finished product in containers.

I have found in practice that my fabric cement is more satisfactory for use in connection with tents and awnings than any other obtainable. It is waterproof, impervious to practically all acids; is pliable and dries rapidly, all of which is a material advantage wherever the cement is employed.

When I refer to the various ingredients, Y I refer to the well-known articles of trade.

Havin" thus described this invention, the

Benzoland 'methyl acetone are first thordetails 0 which I do not desire to be limited,

NICHOLAS o. AMEN. 

